Malignant biliary obstruction due to metastatic non-hepato-pancreato-biliary cancer

Table 1 Computed tomography findings of pancreatic metastases

						Primary Malignancy							Characteristics
Ref.	Year	Cases	Renal	Lung	Breast	Stomach	Colon	Sarcoma	Melanoma	Ovary	Thyroid	Other	Solitary mass	Multiple nodules	Diffuse involvement
Ferrozzi et al[14]	1997	20	2	6	3	3	1		2	2	1		11	2	7
Klein et al [15]	1998	66	20	15	8	4		5	4	2	1	7	52	11	3
Tsitouridis et al [16]	2009	11	1	7	3								7	3	1
Angelleli et al [17]	2012	17	8	4	3			2					7	9	1
Shi et al [18]	2015	18	3	7		5 (stomach+colon)		2				1	12	6
Choi et al [19]	2015	36	17	2		5	7	1	1	1		2	29	7
Galia et al [20]	2018	24	6	8	2			1			4	3	9	13	2
Total		192	57	49	19	12	8	11	7	5	6	13	127	51	14
% of total			30%	26%	10%	7%	5%	6%	4%	3%	3%	7%	66%	27%	7%